Amber Leaf

I there iv been a smoker of amber leaf for as long as I can remember, I brought a pouch from Tesco in gainsborough on the 7th of this month and Iv only noticed as iv got half way down that iv found a £1 coin in there, first thing is, The new £1coin ways 9.5g and secondly I’m fuming as I never thought I would have been conned out of my hard earn wages by such a respectful big company who I have always been loyal to, my ouch ways a 3rd less than what it should is there anything you can do to resolve this mess of a situation up please I have photos aswell many thanks Mr Essom